Two box device model

Commdb supports a two-box device model, which makes it possible to enter multiple modem/location records and definition of a default modem and location. This allows devices with built-in phones to be able to use the built-in phone for SMS, and an external modem for data and fax calls.

The following global settings can be used to specify default modems/locations while setting up a connection.

• MODEM_DATA_FAX: specifies the modem to be used for data and fax connections.

• MODEM_PHONE_SERVICES_SMS: specifies the modem to be used for phone services such as SMS, signal strength, battery strength, phonebook etc.

• LOCATION_DATA_FAX: specifies the location to be used for default modem for fax and data.

• LOCATION_PHONE_SERVICES_SMS: specifies the location to be used for the default modem for phone services.